Sodium nitroprusside selectively induces apoptotic cell death in the outer retina of the rat

W. K. Ju, I. W. Chung, K. Y. Kim, J. S. Gwon, M. Y. Lee, S. J. Oh, M. H. Chun

Research output: Contribution to journalArticlepeer-review

24 Scopus citations

Abstract

Sodium nitroprusside (SNP), an NO donor, was studied for its effects on apoptosis in rat retinal neurons. TUNEL-positive cells were observed in the outer nuclear layer (ONL), but not in the inner retina after SNP treatment. Inner retinal neurons died by necrosis. No photoreceptor cells were found in the ONL after seven days. Immunoblotting confirmed that neurnal NO synthase expression increased up to 5 days (∼170% of control levels), and then declined by 7 days, suggesting that NO induces apoptosis in the ONL, and that inner retinal neurons die by necrosis due to glutamate from damaged photoreceptors.

Original languageEnglish
Pages (from-to)4075-4079
Number of pages5
JournalNeuroReport
Volume12
Issue number18
DOIs
StatePublished - 21 Dec 2001

Keywords

  • Apoptosis
  • Necrosis
  • Nitric oxide
  • Rat
  • Retina
  • Sodium nitroprusside

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